I used them before I started using cloth. For a sposie I LOVE them! They are super absorbent and I never had a leak, even overnight (12 hours). You can get a 2 pack sample at diapers.com for $1.
I've used their diapers and think they are great. I've only used size 3 - we cloth diaper most of the time - and have had no leaks and they fit great on my skinny kid.
Re: Natures Babycare
Same as mama Dobie.
Use them when traveling, we size up, they work awesomely.